Perennial herb. Root thick and woody. Aerial stem absent or much reduced. Leaves stipulate, stipule lateral, densely pilose, hairs white. Leaf imparipinnately compound, c. 2.5-5.0 cm, canescent; petiole c. 1.3-2.5 cm; leaflets opposite, sessile, c. 3-7 mm long, c. 2-3.5 mm wide, oblong or oblanceolate-oblong, entire, mucronate. Flowers in peduncled heads; peduncle c. 1.5-10 cm, bracts c. 3-3.5 mm long, canescent; subsessile. Calyx densely pilose, hairs black and white, c. 5 mm long, teeth c. 2 mm. Corolla blue (Bor in herb.) or yellow rarely purple or keel tipped with purple (Baker l.c.). Vexillum c. 7-9 mm long, c. 3-3.5 mm broad; wing c. 6.5-7 mm long; keel c. 6 mm long. Fruit inflated, c. 10 mm long, c. 7-8 mm broad, roundish, covered with white spreading hairs.